SB20240531180 - Use-after-free in Linux kernel net sctp

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Main Vulnerability Database SB20240531180

SB20240531180 - Use-after-free in Linux kernel net sctp

Published: May 31, 2024 Updated: May 14, 2025

Security Bulletin ID SB20240531180
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Use-after-free (CVE-ID: CVE-2021-46929)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the sctp_transport_lookup_process() and sctp_transport_get_idx() functions in net/sctp/socket.c, within the sctp_sock_dump() and sctp_sock_filter() functions in net/sctp/sctp_diag.c, within the sctp_endpoint_free() and sctp_endpoint_destroy() functions in net/sctp/endpointola.c. A local user can escalate privileges on the system.


Remediation

Install update from vendor's website.

References